I just picked up my first set of leathers and I want to know what all you track junkies use as under suits? I've seen guys using Under Armour, Starter gear and other athletic materials and just wanted some other options before I make a purchase. Are the Alpinestars and RS Taichi items worth the expense? Better to get one piece or two. I'm really starting from the ground floor on this one. :dontknow:Thanks for any suggestions.